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Thread: ULT and valve compatibility

  1. #1
    Join Date
    Dec 2001
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    Houston
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    ULT and valve compatibility

    I remember some discussion, way back in the day, concerning ULTs and valve compatibility. I know classic valves are not compatible, shoot down, however I was under the impression certain types of retro valves couldn't except an ULT. Any truth to that?

  2. #2
    Join Date
    Oct 2001
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    Inception Designs HQ
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    3,066
    Yes. Some of the early Emag/ReTro valves need to be milled out for it. Xvalves are fully compatible.

  3. #3
    Join Date
    Nov 2013
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    Austria
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    441
    Quote Originally Posted by Nobody View Post
    Yes. Some of the early Emag/ReTro valves need to be milled out for it. Xvalves are fully compatible.
    Can one go by serial numbers (roughly) in order to single out whether an RT valve will be ULT-compatible without milling or not?

  4. #4
    Join Date
    Oct 2004
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    Mt. Pleasant, SC
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    2,741
    best bet is to look in the on/off hole. if it is using 1 oring at the top it can not use ult.

    if it is milled for 2 orings your good to go.

  5. #5
    Join Date
    Feb 2002
    Location
    'Merica
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    2,625
    I've had 2 retrovalves milled for it, works great (if done right)!
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